Cement-mixing machine.



2 SHEETS-SHEET 1.

APPLICATION FILED SEPT. Y, 1907.

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No. 877,918. PATENTED IEB. 4, 1908.

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CEMENT MIXING MACHINE.

APPLICATION FILED SEPT. 7, 1907.

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Gwmwm' l l v v FRANKLIN J. EMAL, OFIPICKIRELL, NEBRASKA.

' CEMENT-MIXING MACHINE.

No..s77,91s.

To all whom 'it may concern:

Be it known that FR'ANKLIN J. EMAL, a citizen of the United Pickrell, inthe county of GageandState of Nebraska, has invented certain new anduseful Improvements in Cement-Mixing Machines, of which the followingis' a specification.

,This inventiony relates to improvements in cement mixing machinesadapted for use .combining cement, sand or ot er granulated or powderedmaterial with water or liquids for building purposes, and includes.means for forcing the feeding of the dry'materials, and fortransmitting to the mixingldevices said material in graduated -ormeasured quantities; the invention has reference also to the productionof a machine of few arts,

' particular of economical'construction, but whic will be eiiiective forthe purposes designed. With these and ot er objects in View theinvention presents a pointed outfbythe claims, and illustrated by thedrawings, wherein,` Y

Figure 1 is a vertical, side view of the invention," partly. broken l vFig. 3is a transverse, sectional view through the feeding boxes, as online a b of Fig. 2; and Fig. 4 is a vertical, end view of the invention,

Referringnow to the drawings for a more description, the numeral 1indicatesa rectangularly formed boX or receptacle, for convenience ofdescription-called the machine-body, and is sup orted upon legs 2, andis preferably prov1 ed with a downwardly curvedy bottom .3. Y

I provide the shaft 4 having a mounting in L each end, wall ofthereceptacle at (points 'cen-" trally of the curved bottom 3, an upon`this shaft is securely mounted the worm 5. -The rear end of shaft 4 isextended to roject outside of the /tension is mounte j receptacle, andupont lex- -pulley 6. As thus described the worm is disposedlongitudinally of and within the receptacle, adjacent the powers inner.wall of the curved bottom 3and is adapted to have a rotarymovement fromrotation of shaft 4, pulley 6 receiving actuation from anysuitableexterior source of I Vprovide the vertical partition 7 securedtransversely betweenthe side walls of the machine-body., adjacent end 8,and between partition 7 and end wall'8 lof the machineV I l Specicationof Letters Patent. Application tiled September 7. 1907.A Serial No.391.786.

-provide vertical longitudinally of the each having side-edges 21adapted to have a new combination and arrangement of parts as describedherein, 14 and partition away. .Fig 2 is al Patented Feb. 4, 1908.

partitions 9 and 10 which e y adjacent each other and are disposed clossides of the machine-body.

paralle with the he lower end 1-1 in Fi 3, and it terminates above theworm; and t e lower end of partitions 9 and 10 teiminate above end 11 ofpartition 7. As

thus constructed chambers or feeding-boxes l2 and 13v re formed, andpartitions l9 .and 1() are dis osed so that one ofthe chambers .islarger t an the other.

I provide shelves 14 and 15 which extend downwardly-.divergent from.side walls 16 and 17, respectively, of the machine-body and terminate-adjacent the lower end of partitions' 9 and 10 to providev exit-.ports18 'and 19. I provide slides c and d, preferably having convexed outersurfaces eXtendin machinebod an in slots 20 formed in' shelf slidableseating 9 andin shelf 15 and partition 10.

It intended by theforegoing constructaining cement and a lariger chamber12 for holding sand, and, by're erenoe to Fig. 2 it Will be seen thatwhen the slides are closed, `sand and cement would be contained in theirrespective chambers and would not pa'ss downward; but if the `slides aredrawn so that -a part of the .chambers areuncovered, the1material canthen pass downward upon the worm,.the amount which passes depending, ofcourse, upon the distance the slidesare drawn.

, :In -order that the supply; chambers 12 and 13 may e forced down--ward upon the worin, and that the feeding may be measured and constantand regular, I employ shafts 23 and 24 in connection with otherdevicesnow to be explalned.

tionto provide a lesser chamber 13 for ,con-v Of material inv ofpartition 7 is best shown Shafts 23 and 24 are disposed parallel withsides 16 and 17 and have mountings for vone vof their ends in partition7, their opposite ends being mounted in end 8 of the machinebody; and Ivprovide leaves'or blades 25 secured upon 'shaft 23 4which extend out- YWardly therefrom and terminatev at .a distance from this shaft so' thateachv of said blades will pass closely adjacent to shelf 14A p andpartition 9, When the shaft is rotated; and upon shaft 24 are securedleaves 4or shaft23, and these blades extend outwardly 26l of lesserwidth thanthose upon' lio wheels 27 and 28 each' having, preferably, the

- movement of said shaft blades 26'. pass closely 4and 19, therebybetween partitions 9 and from this shaft, and during the revolublespection by the operator, of the mixing process during the movement ofthe machine. adjacent to shelf 15 and to artition 10. The The outwardcurvature of slides c and d, blades 25 and 26-extend. a ong the shafts23 l conform to the circular space occupied by and 24, respectively,substantiallythe lengths l blades 25 and 26 during the revoluble moveofsaid chambers 12 and 13. ment of these blades;

Shafts 23 and 24 may be calledfeedingl curved form they oHer-a greaterresistance to shafts, and are extended outwardly to prothe weight ofmaterial which ordinarily rests jectbeyond the end 8 of the machine, andI upon them, and sheet-metal may be used mount upon said shafts,respectively, gearin their construction. The machine as described is notexpensive in construction, comparatively speaking, tion for rapid workinthoroughly mixing the ingredients in any desired proportions.

What I claim as my invention is,-

1.y In a mixing machine, of a containing receptacle having thetransversely-disposed partition therein, a longitusame number of cogs.Upon shaft 23 and outwardly from gear-wheel 27 is secured lsprocket-wheel 21', and lupon shaft 4 isl mounted sprocket-wheel 22,-thelatter being connected with wheel 21 by chain 30, and it will beunderstood that' when pulley 6 is l rotated in the direction indicatedby the arrow in Fig. 4, shafts 23 and 24 will thereby dinally disposedworm within the containing be rotated in opposite directions, and bladesreceptacle, 25 and 26 will tiereby be moved upward to connected withsaid partition to form an pass, respectively, partitions 9 and 10, and oening therebetween and to form feedingwill be moved downward topass,respectively, i cfiambers upon planes above said longitudishelves14 and 15. i nally-disposed worm, saidv feedingchambers By theconstruction described it is' inbeing rovided with exit ports; ashaftwithtended that sand and cement contained, re-

inl eac feeding-chamber disposed parallel spectively, within chambers 12and 13, will be forced or thrown in directions toward each other as theyrespectively pass openings 18 having lengthwise-extending bladesthereon; a slidable closure traversing each feedingmore readily becomingchamber above the plane of each of said mixed. The proportionate amountswhich l shafts;means to cause arevoluble movement pass, of eachingredient, depend of course, of said longitudinally-disposed worm, andupon the width of blades 25 and 26, the rotameans to cause a revolublemovement of tion of shafts 23 and 24 being equal. said shafts within thefeeding-chambers..

I provide visible indexes 31 and 32, re- 2. In a mixing machine, thecombination spectively upon slides a and b and the indexes of acontaining receptacle having the transregister with artition 7; the suply of maversely-disposed partition therein, a longituterial is there yunder control of) the o erdinally-disposed worm within the containingator so that any proportion may be supp ied receptacle, the' adjacentlydisposed plates 0f ingredients for the mixture, by with rawconnectedwith said partition to form. an ing-the slides or either o'f them anydesired o ening therebetween and to Aform feedingdistance. l c ambersupon planes vabove said longitudi- From the description it will benotedthat nally-disposed worm, said* feeding-chambers the mixture isconveyed by movement of the worm, in a direction toward end 33 of themachine. A water tank 34 is secured upon the machine, and has an opening29 communicating with the interior of the machine, and the sup ly ofwater may be conveniently controlled by means of the closure or slide35, the slide having an angular stem- 36 passing upward and out of thetank and slidable in straps 37, the latter being secured upon the top ofthe tank. Any convenient exit port maybe provided for the outwardpassage of the material after becoming mixed, as pipe-opening 38.

It will be noted that an opening isformed 10 (Figs. 2. 3.) this openingextends the entire lengt of the feeding boxes, and is useful' forpermitting an m'- being rovided with exit ports; .a shaft within eacifi.feeding-chamber disposed parallel with said longitudinally-disposedworm and having len thwise-extendin blades thereon; an outwarl -curvedslidab e closure having an index thereon registerin with saidparti` tionand traversing each eeding chamber above the plane of each said shafts;means to cause a revoluble movement of said longitudinally disposedworm, and means to within the feeding-chambers. Y In testimony signaturein presence of two witnesses. Witnesses;

FRED O. BUsBooN,

E. W. WrLLrAMs.

and is reliable in operawith said longitudinally-disposed worm andlcausev a revoluble movement of said shafts by reason of their thecombination i soA the adjacentlydisposed plates f whereof I have affixedmy l FRANKLIN J. EMAL.

